Automatic lubricating journal box



Aug. 27,. 1929. A. DE BAC AUTOMATIC LUBRICATING JOURNAL BOX Filed Oct. 12, 1928 2 Sheets-Sheet 1 Aug. 27, 1929. A. DEYBAC Y 1,726,261

' AUTOlA/TIC LUBRICATING JOURNAL BOX Filed oct, 12. 192e sheets-sneer 2 Y Patented Aug. 27, 1929 UNITED STATES PATENT oFFlcE.

ALFRED DE BAC, 0F' GENEVA, SWITZERLAND, ASSIGNOR TO ISOTHEBMOS CORPORA- TION OF AMERICA, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

AUTOMATIC LUBRICATING JOURNAL BOX.

Application tiled October 12, 1928. Serial No. 312,038.

The invention relates to automatic lubrieating journal boxes involving an oil reservoir in the bottom of the box and a paddle or blade distributor fixed to the shaft or axle which serves to pick up the oil and distribute the same to the bearing; and has for its object to provide the box with extended settling surfaces over which the oil flows in its return from the bearing and the journal to the reservoir, so that solid material, such as metal particles detached from the bearing, may be segregated from the oil and the latter may be used repeatedly and indefinitely without bodily reinoving such solid material.

The invention is illustrated in the accompanying drawings, invwhichz Fig. 1 is a lateralsectioiial elevation of a typical box involving the invention.

Fig. 2 is a section on line 2-2 of Fig. 1.

Fig. 3 is a section on line 3&3 of Fig:A 1.

Fig. 4 is a View similar to Fig. 1, showing a modified construction of box.

Fig. 5 is a fragmentary front elevation partly in section on line 5-5 of Fig. 4.

Referrin .to Figs. 1, 2 and 3, the journal box is in t e form of a cast metal casing having a top 1 provided with an interior seat 2 to receive the journal bearing 3, side walls, 4, 4 and a rearwardly inclined bottom 5, the forward end of the box being provided with an integral eircumfereiitially enlarged chamber 1.0 having an' oil reservoir 11 at the bottom thereof. x j

The rear portion of the box is provided with a chamber 6 to receive a dust guard 7, which latter may be of any approved form to embrace the shaft or axle and seal the opening through which the latter passes to the box. The axle 15 is provided with a journal 16, whichv engages the bearing 3. Secured to the end of the axle and operating in the enlarged chamber'lO is a radial blade or paddle 17 the ends of which paddle, when rotated dip into the oil in the oil reservoir 11 and ultimately deliver the oil to the top of the bearing 3, as more particularly described in Letters Patent No. 1,617 205 dated February 8, 1927. It will be understood thatthis particular type of rotary distributor is merely exemplary and that the invention may be utilized in connection with this or any other form of rotary dis'- tributor operating on the same general principle, to wit, the maintenance of a body of l oil in a reservoir at the bottom of the box and the elev-ation and distribution of the oil in proper quantities to the bearing to lubricate the same. In automatic lubricating journal boxes of this general type, it is desirable to conserve the oil and to obviate the necessity of removing the oil from; the jour- -nal box to clear the same of foreign maarticles of metal rom the bearing,

terial, such as small abraded or detached -whi'ch, if permitted to remain in the body surfaces over which the oil, in its return from the bearing 3 and journal 16 to the rescrvoir l1, passes slowly, so that the foreign materials will settle out of the oil and be retained upon the surfaces aforesaid.' As indicated, the bottom wall 5 of the box, located immediately below the journal 16 and receiving the oil dripping therefrom, is inclined toward the rear of the box and preferably provided with a transverse rib 5 connecting it with the side walls 4 of the box, which rib serves as a dam, so that a large proportion of the solid material carried by the oil will settle on the inclined top surface 5 of the bottoni and be retained by the rib 5. The inner end of the inclined bottom 'connects with two laterally and downwardly inclined gutters 12, 12, disposed symmetrically with respect to the vertical plane passing through the longitudinal axis of the journal, which gutters discharge at their lower ends into lateral channels or conduits 13 formed integrally' with the box, which channels, in turn, are inclined downward toward the front of the box and discharge into the reservoir 11. The bottom surfaces of the gutter-like elements 12 and the channels 13 constitute further settling areas or surfaces onto which any solid inaterial which remains in the oil, after the latter has passed over lthe inclined bottom flows over said sur 5, settles, as'the relatively thin film of oil .AVVhat I claim is:V

faces; the solid material remaining on the surfaces'aforesaid and the oil in a p ra A ing to the reservoir 1-1. l l

In the modification shown in Figs. 4; and 5, the general'structural arrangement ofthe elements of thejournal box and the automatic lubricator is the same as that shown in Fig. 1, the only'dif'ference beingin the form and disposition of the settling' surfaces,

whichinclude a rearwardly inclined bottom surface 5a, which terminates short of the rear wall of thebox and is preferably-'provided with a dam-like rib 5b similar to the element 5 in the first modification. The rear end of the inclined bottom 5a discharges into the vertical passage 12', the lower end of which opens into a duct or conduit 13 formed in tegrally with the box structure and below the bottom thereof and which communicates with the oil reservoir 11' in the enlarged front portion of the box. In'this case, the inclined surface 5a and the bottom of the conduit 13 constitute extended settling surfaces unto which any solid material entrained in the oil settles and is retained. o

'Inboth forms of the apparatus described, it will be seen that the settling surfaces 'are ofsuch extent as to cause the oil returning from the bearing to flow thereover in a relatively thin film, so that any and' all metallic particles carried by the oil settle upon andare retained by the surfaces.

tically pure condition return 1. A journal box for automatic lubricators comprising top, side and bottom walls, the latter being inclined toward. the rear box and constituting a settling surface-for solid matter entrained in the oil, an oil reservoir inthe front of the box, and a conduit connecting the discharge endotl the in- 'clined bottom with the reservoir, the bottom of said conduit constituting a further .settling surface. v

2;' A journal box for automatic lubricators comprising top,side and bottom Walls, the latter being inclined toward the rear of the box and constituting a settling surface for solid matter entrained in the oil, an oil reservoir-in the front ofthe box and an inclined conduit connecting the discharge end of the inclined bottom with the reservoir, the bottom of said 'conduit constituting a further settling surface.

3. A journal box' for automatic lubricators comprising top, latter being inclined toward the rear of the box and constituting a settlingsurface for solid matter entrained in the oil, an oil'ireservoir in the front of the box, and transversely and longitudinally inclined conduits y connecting `the discharge' end of the inclined bottom with thereservoir and constituting further settling surfaces. y

In testimony whereof I aiiix my signature..

1 ALFRED DE BAC.

side and bottom walls, the' of the Y 

